Device for readying thread ends of supply coils in a creel for textile machines

ABSTRACT

Device for readying a thread end of supply coils arrayed in a creel for textile machines so that a respective end surface of the coils faces in a given forward direction includes a thread holder movably mounted for adjustment to a position in front of the end surface of a respective supply coil mounted in the creel in place of a previously depleted coil wherein the thread end of the space coil is accessible for insertion in the thread holder so as to be readied for subsequent processing, and, after removal of the thread end from the thread holder, to a position located outside of a geometric form defining a longitudinal extension of the peripheral surface of the respective supply coil.

llnite States Patent Inventor Stefan Furst 20 Peter-Nonnenmuehlen-Allee, Moenchengladbach, Germany Appl. No. 727,155 Filed May 7, 1968 Patented Dec. 7, 1971 Priority May 13, 1967 Germany R 46016 DEVICE FOR READYING THREAD ENDS OF SUPPLY COILS IN A CREEL FOR TEXTILE MACHINES Primary Examiner-Leonard D. Christian Attorneys-Curt M. Avery, Arthur E. Wilfond, Herbert L.

Lerner and Daniel J. Tick ABSTRACT: Device for readying a thread end of supply coils arrayed in a creel for textile machines so that a respective end surface of the coils faces in a given forward direction includes a thread holder movably mounted for adjustment to a position in front of the end surface ofa respective supply coil mounted in the creel in place ofa previously depleted coil wherein the thread end of the space coil is accessible for insertion in the thread holder so as to be readied for subsequent processing, and, after removal of the thread end from the thread holder, to a position located outside ofa geometric form defining a longitudinal extension of the peripheral surface of the respective supply coil.

PATENTEDDEE 7197i 3.625.453

INVENTOR Ja 1W m DEVICE FOR READYING THREAD ENDS F SUPPLY COILS IN A CRlEEL FOR TEXTILE MACHINES My invention relates to creel for textile machines and more particularly to a device for readying a starting thread end of each of the supply coils mounted in the creel.

In German Pat. No. 728,460, there is disclosed a creel for textile machines wherein, for the purpose of exchanging depleted supply coils with replacement supply coils, there is provided a device capable of traveling along the creel so as to seize the thread ends conjointly after the coil exchange has been effected. In order to be able to grip the thread ends of the replacement coils with the just-mentioned known device for conjointly seizing the thread ends after the depleted coils have been replaced by full coils, there is further provided in the heretofore known creel of the German patent, means for readying the thread end of each of the replacement supply coils. Thus, after a replacement supply coil has been stuck onto a respective mounting pin or mandrel of the creel, the thread end is then placed on a groove formed at the forward end of the core in the respective supply coil. Such means has a disadvantage, however, in that specially constructed coil cores must be used. I have therefore proposed in my US. Pat. No. 3,377,676 issued Apr. 16, 1968 to provide at the forward end of the mandrel or pin on which the respective supply coils are received, a brush or the like at which the thread starting end of the respective coil can be made ready. This earlier invention of mine has a disadvantage, however, in that it cannot be employed for all types of coil cores. As is generally known, there are a great number of so called closed coil cores such as knitting or weaving cores which have a hollow center closed at one end so that a mounting mandrel on which such a closed core is stuck, does not protrude from the hollow interior of the coil core.

It is accordingly an object of my invention to provide device for readying a thread end of respective supply coils arrayed in a creel for textile machines which avoids the disadvantage of the hereinbefore mentioned previously known devices of this general type.

- More specifically it is an object of my invention to provide such a device which can be employed for supply coils having all types of coil cores.

It is a further object of my invention to provide such a device for readying the thread ends which will afford troublefree unwinding of the thread from the supply coils.

With the foregoing and other objects in view I provide such a device in accordance with my invention comprising a thread holder movably mounted for adjustment to a position in front of the respective end surface of a supply coil mounted in the creel in place of a previously depleted coil wherein the thread end of the supply coil is accessible for insertion in the thread holder so as to be readied for subsequent processing, and, after removal of the thread end from the thread holder, is movable to a position located outside of a geometric form defining a longitudinal extension of the peripheral surface of the respective supply coil.

In accordance with another feature of the invention, I provide an adjustable thread holder in the creel which is movable to a position substantially at the level of the longitudinal extension of the axis of the mandrel on which the respective coil is mounted, for the purpose of inserting a thread end of the respective coil into the thread holder, and after removal of the thread end from the thread holder, is movable to a position located outside of a geometric form defining a longitudinal extension of the peripheral surface of the respective supply coil.

In accordance with a further feature of my invention, the thread holder, when located outside the geometric form is disposed between adjacent supply coils arrayed in the creel so that the thread holder in that position serves as means for obstructing ballooning of the unwinding thread. In other words, after the thread end has been removed from the respective thread holder by, for example, a seizing member of the type disclosed in my aforementioned patent, the thread holder is then movable to a position between adjacent supply coils wherein it is located in the region of ballooning of the unwind ing thread, so that the thread of the respective adjacent supply coils cannot therefore interfere with one another.

In accordance with a still further feature of my invention which simplifies servicing of a creel, I connect together all of the thread holders of a row of supply coils mounted in a creel or, in fact, of all the supply coils mounted in the creel. The thus connected thread holders can be adjustably moved together by hand or mechanically. Means for mechanically moving the thread holders is actuable for example by the conventional device which seizes the thread ends that have been made ready in the thread holders and delivers the thread ends to the conventional device for tying the same. Such conventional devices are known for example from my aforemen tioned US. Pat. No. 3,377,676 and from my US. Pat. No. 3,377,677.

With further regard to the last-mentioned feature of the invention, when individual traveling carriages for each of the coils are employed at the creel, the coupling members for the thread holders can be connected to one another so that the thread holders of all the carriages can be moved simultaneously. Thus, the thread holders can be automatically coupled to one another for example by joining the individual carriages together.

In accordance with yet a further feature of the invention, each of the thread holders is pivotally mounted on a pivot pin located between the adjacent supply coils of the creel, it being further possible to pivotally mount the thread holders of a respective pair of adjacent supply coils on a common pin.

Other features which are considered as characteristic for the invention are set forth in the appended claims.

Although the invention is illustrated and described in a device for readying thread ends of the supply coils in a creel for textile machines, it is nevertheless not intended to be limited to the details shown, since various modifications and structural changes may be made thereto without departing from the spirit of the invention and within the scope and range of equivalents of the claims.

The construction and method of operation of the invention, however, together with additional objects and advantages thereof will be best understood from the following description when read in connection with the accompanying drawing, wherein:

FIG. 1 is a side elevational view of part of a creel for textile machines according to the invention showing only two adjacent supply coils of avertical column of the coils mounted above one another; and' FIG. 2 is a top plan view of FIG. 1 showing only two adjacent supply coils of a horizontal row of the supply coils.

Referring now to the drawing, there are shown supply coils 1, 2 and 3 having hollow cores 4 by which they are mounted in a conventional manner on suitable pins or mandrels 5 each fixed to vertical rods 6 of the creel. A carrying arm 7 is also fixed to the vertical rods6 at substantially the same level at which the mandrels 5 are fixed. The carrying arm 7 extends between the horizontal adjacent coils 1 and 3 and carries a shaft or pivot pin 8 at the free end thereof. An angle arm 9a carrying a thread holder 9 of conventional construction is pivotally mounted on the pin 8. As viewed in the figures, the respective thread holders 9 have been pivoted into a position in front of a forward end surface 1a, 2a and 3a of the respective supply coils 1, 2 and 3, after the coils 1, 2 and 3 have been mounted on the mandrels 5 in place of previously depleted coils. The respective thread ends F are then insertable in the thread holders 9.

After the thread ends F have been removed from the thread holders 9 by a suitable nonillustrated seizing member of the type disclosed in my aforementioned patents, the thread holders 9 are pivoted about the respective pivot pins 8 in clockwise direction as viewed in FIG. 1 to a position indicated by the dot-dash line 9c so that they are located between the adjacent supply coils, such as the coils 1 and 2 of FIG. ll. This pivoting movement of the thread holders 9 is produced by a vertically extending pushrod 10 as shown in FIG. 1 which is vertically slidable in carrying members 11 secured to the rods 6 and is provided with respective pins 12 inserted in respective slots 9b formed in the respective arms 9a. As is clear from FIG. 2, the thread holders 9 for the coils 1 and 3 as well as corresponding thread holders for other nonillustrated coils in the vertical column thereof of FIG. 1 can be pivoted simultaneously, in such a case, the pivoting movement for the thread holders 9 of the adjacent pairs of coils l and 3 being effected about the common pivot pin 8. Similarly, all of the vertical pushrods 10 for adjacent columns of supply coils in the creel can be connected together whereby they can all be moved vertically simultaneously so that all of the thread holders 9 provided in the creel will be moved simultaneously from one to the other position thereof.

l claim:

1. Device for readying a thread end of supply coils arrayed in a creel for textile machines so that a respective end surface of the coils faces in a given forward direction comprising a thread holder movably mounted for adjustment to a position in front of the end surface of a respective supply coil mounted in the creel in place of a previously depleted coil, wherein the thread end of the supply coil is accessible for insertion in the thread holder so as to be readied for subsequent processing, and, after removal of the thread end from the thread holder, for adjustment to a position located outside of a geometric form defining a longitudinal extension of the peripheral surface of the respective supply coil.

2. Device according to claim 1 wherein said thread holder, in said position wherein it is located outside of said geometric form, is disposed between adjacent supply coils mounted in the creel and serves as means for interrupting balloon-formation of the thread unwinding from the adjacent coils.

3. Device according to claim 1 including a thread holder associated with each of a plurality of supply coils mounted in a row in the creel, all of the thread holders in said row being coupled to one another.

4. Device according to claim 1 including a thread holder associated with each of the supply coils arrayed in the creel, all of the thread holders being coupled to one another.

5. Device according to claim 1 including a pivot pin located between an adjacent pair of supply coils mounted in the creel, said thread holder being pivotally mounted on said pin for movement between said positions.

6. Device according to claim 1, comprising a pivot pin supported on the creel between adjacent coil-mounting mandrels thereof, a pivotable arm mounted on said pin and carrying said thread holder at one end portion thereof, a pushrod slidably mounted in the creel and displaceable in a direction transverse to the axis of said pivot pin, said pivotable arm being operatively connected at the other end portion thereof to said pushrod so that said thread holder is pivotable between said positions thereof by displacement of said push rod.

7. Device according to claim 6 wherein a thread holder is provided for each of the adjacent mandrels for readying a thread end of a respective supply coil mounted on said mandrels, each of said thread holders being carried by a separate pivotable arm, both of said pivotable arms being mounted in common on said pivot pin.

i t t t III mg UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No. 3, 5,453 Dated December 7, 97

Inventor(s) STEFAN FfiRST It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

On the abstract page, left-hand column, between lines 6 and 7, please insert the following:

733 AIssignee WALTER REINERS Signed and sealed this 25th day of July 1972.

(SEAL) Attest:

EDWARD M.FLETCHJ:;R,JR. ROBERT GOTTSCHALK Attesting Officer Commissioner of Patents 

1. Device for readying a thread end of supply coils arrayed in a creel for textile machines so that a respective end surface of the coils faces in a given forward direction comprising a thread holder movably mounted for adjustment to a position in front of the end surface of a respective supply coil mounted in the creel in place of a previously depleted coil, wherein the thread end of the supply coil is accessible for insertion in the thread holder so as to be readied for subsequent processing, and, after removal of the thread end from the thread holder, for adjustment to a position located outside of a geometric form defining a longitudinal extension of the peripheral surface of the respective supply coil.
 2. Device according to claim 1 wherein said thread holder, in said position wherein it is located outside of said geometric form, is disposed between adjacent supply coils mounted in the creel and serves as means for interrupting balloon-formation of the thread unwinding from the adjacent coils.
 3. Device according to claim 1 including a thread holder associated with each of a plurality of supply coils mounted in a row in the creel, all of the thread holders in said row being coupled to one another.
 4. Device according to claim 1 including a thread holder associated with each of the supply coils arrayed in the creel, all of the thread holders being coupled to one another.
 5. Device according to claim 1 including a pivot pin located between an adjacent pair of supply coils mounted in the creel, said thread holder being pivotally mounted on said pin for movement between said positions.
 6. Device according to claim 1, comprising a pivot pin supported on the creel between adjacent coil-mounting mandrels thereof, a pivotable arm mounted on said pin and carrying said thread holder at one end portion thereof, a pushrod slidably mounted in the creel and displaceable in a direction transverse to the axis of said pivot pin, said pivotable arm being operatively connected at the other end portion thereof to said pushrod so that said thread holder is pivotable between said positions thereof by displacement of said push rod.
 7. Device according to claim 6 wherein a thread holder is provided for each of the adjacent mandrels for readying a thread end of a respective supply coil mounted on said mandrels, each of said thread holders being carried by a separate pivotable arm, both of said pivotable arms being mounted in common on said pivot pin. 